Dag Hammarskjöld

Dag Hjalmar Agne Carl Hammarskjöld was a Swedish economist and diplomat who served as the second Secretary-General of the United Nations. As of 2021, Hammarskjöld remains the youngest person to have held the Secretary-General post, having been only 47 years old when he was appointed in 1953. His second term was cut short when he died in the crash of his DC-6 airplane in Northern Rhodesia while en route to cease-fire negotiations during the Congo Crisis. He is the only person in history to be awarded a Nobel Peace Prize posthumously.